Tema
Q:
The bivariate hypothesis-testing procedure that is used when both the independent and dependent variables are
continuous is
A) Continuous hypothesis test
(B) Pearson's correlation
(C) Analysis of variance
(D) continuous samples t-test
Q:
The sign of the correlation indicates whether the correlation between the independent variable and dependent variable
is negative or positive
(A) True
(B) False
Q:
The coefficient of determination is symbolized by which of the following?
(A) r-squared
(B) beta
(C) 52
(D) CoED
Q:
Correlation is a relatively quick way to test for causality as well as statistical significance.
(A) True
B) False
Q:
What would a researcher say about a coefficient of determination equal to -. 48 ?
A) The \( 48 \% \) of variance in my dependent variable can be explained by variance in the independent variable
(B) An error is made
(C) The relationship is not statistically significant due to the low value of the coefficient.
(D) Inconclusive results. Post hoc tests are needed.
Q:
The appropriate degrees of freedom for the distribution used in correlation is off \( =\mathrm{N}-\mathrm{k} \).
A) True
(B) False
Q:
What is the test statistic for correlation?
(A) r
(B) F
(C) \( z \)
(D) \( \times 2 \)
Q:
What do correlations less than zero signify?
A that the relationship between the variables is negative
B correlation statistic can't have negative value
(C) We need to square the correlations to get rid of the negative numbers
(D) There is an error made
Q:
The mode of the data \( 10,3,7,3,15 \)
Q:
3. Calcular el número de combinaciones de 10 elementos tomados de 4 en 4.
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